jsa-service.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 4 September 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.175 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 185.21.40.175 | 3600s | vm1484.enterprisecloud.nu | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx1.onlinemail.io | 185.21.42.12 | mx1.onlinemail.io | AS48854 team.blue Denmark A/S |
| 20 | 3600s | mx2.onlinemail.io | 46.36.208.16 | mx2.onlinemail.io | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover-mf.onlinemail.io → 185.21.40.62 |
| 🔶 Autoconfig | autoconfig-mf.onlinemail.io → 185.21.40.62 |
| TXT Record |
|---|
| MS=ms10626660 |
| v=spf1 a include:spf.curanet.dk include:spf.simply.com include:web.shared.mysmtp.com include:spf.onlinemail.io -all |
| Policy | Record (jsa-service.dk) |
|---|---|
| -all (hard fail) | v=spf1 a include:spf.curanet.dk include:spf.simply.com include:web.shared.mysmtp.com include:spf.onlinemail.io -all |
| www | 185.21.40.175 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-jsaservice-dk0i._domainkey.jsaservicedk.a-v1.dkim.mail.microsoft | RSA · ~2048 bit |
| selector2 | selector2-jsaservice-dk0i._domainkey.jsaservicedk.a-v1.dkim.mail.microsoft | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 12/10 · policy: -all
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026062601 |
| Primary NS (MNAME) | ns1.curanet.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | CURANET A/S |
| Registered | 2007-09-04 |
| Expires | 2027-09-30 (348d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-25 08:37:49 | 871ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-22 04:02:14 | 1070ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-21 06:04:39 | 8120ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-29 05:36:54 shown | 548ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-19 13:44:20 | 648ms | 2 NS 1 A 2 MX | ⚠️ Bogus |
| 2026-06-18 03:20:32 | 874ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-18 02:58:06 | 714ms | 2 NS 1 A 2 MX | 🔒 Secure |